Question about 2004 Ford Explorer

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My car does not recognize my car keys

My car does not recognize my car key
and the security system has locked the car and the car will not start

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Does it have a ford theft ligt on the dash if so put the key in it turn it to the on postion and just leave it until the theft light stops flashing the turn the key off then try to start it sounds like the theft system is on and thats how you have to reset it good luck

Posted on Oct 06, 2009

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It is possible that you have de-magnitised the encoder in the key. this can be done on accident by the key comming in contact with strong magnettic fields, or the "scanner" at most stores that clears the anti shopifting tags. you may need to contact the dealer and have then "issue" you a new key. Ford keeps all encoder ID's on file by your VIN Number.

Posted on Oct 06, 2009

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1 Answer

2003 dodge neon security system


best place for this is a service dealer
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if you were to get a locksmith to install a new barrel , it would have to be reset to your key so that you could insert the key and activate the immobilizer system
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Well you don't actually program the key, you put the car into a condition so it will "learn" the remote to use with it.

Procedure
1. First open a window (just in case) use existing key (if you have one) place in ignition and turn to ON (RUN position), do not start the engine.
2. Use the new key to lock the car, the key not the remote. Now press one of the buttons once on the new key transponder, the lights should flash, wait 10 seconds and press the unlock button, the doors should unlock and the key should be recognized by the car's security system.
3. If you are programming a second key repeat the above but press the remote button twice, three times for a third key.

Alternative Method
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1. Switch on ignition; system will then remain in programming mode for 30 seconds.
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If you are sure that the shifter is all the way in Park. then your key cylinder could be faulty and you are most likely locked out from starting the car by the Security System. With a faulty key cylinder, the Security System "thinks" that someone is trying to steal the car and locks out the starter and the fuel system.

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The pass lock is beginning to fail.You can try reporogramming it following this procedure. If it still continues to happen the pass lock/ignition tumbler may need replaced.
PASSKEY LOCKOUT RESET ALL GM CARS 1999 AND UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the PASSKEY system to recognize your key
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Do you have the remote, i.e. The deadlock system is activated and deactivated using the remote control key fob, which allows the driver to open the car as they approach. It seems you have activated the steering lock which is for preventing thieves to make a getaway. Use the remote to deactivate it and then try starting the car.......sodeep
P.S. The security system is a built-in feature of this model

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TRY THIS RESET FOR THE SECURITY SYSTEM.

PASS LOCK RESET GM CARS 1999 UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the passlock system to recognize your key.

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Here is something that the emission wiz helped me with


PASS LOCK RESET GM CARS 1999 UP
1) Put the key in the ignition and turn to the "ON" position. Leave it that way for 10 minutes. After 10 minutes turn the key and take it out. Repeat this process (2) more times (3 times, 30 minutes total) This should reset the passlock system to recognize your key
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